There are two patches:
one is for Akumajou Dracula: Sougetsu no Juujika(Japan),
other is for Castlevania:Dawn of Sorrow(US).
This is the first hack of Castlevania:Dawn of Sorrow in Romhacking.net.
First, this hack changed the configuration of enemies for all rooms, just like the images showed!
Second, the enemies' HP and ATK are increased!
Third, the Magic seal is easier, just need the first stroke.
The Japanese Version:
name : Akumajou Dracula: Sougetsu no Juujika(Japan).nds
size : 67108814
crc32: 0DF769EE
MD5 : B3868D4C5AEF98B73F084BBAEEAE39DB
SHA-1: C03A0FF7275116A321FB9242FCC823F2FC9AC87B
The US Version:
File Name:Castlevania - Dawn of Sorrow (U)(Legacy).nds
File MD5: CC0F25B8783FB83CB4588D1C111BDC18
File SHA-1: 47530FF87E608F88105A314FDF36DC385F8DEC94
File CRC32: 135737F6